AquaScape Pro-Fit 10' x 12' EPDM Liner and Underlayment Kit Pre-Cut EPDM Liner for stream, waterfall, or pond construction Liner remains flexible when cold - Underlayment does not rot! 20-Year warranty against Solar UV degredation and break-down Can be shipped UPS Save Money By Ordering this Liner & Underlayment Combination for your project